联盛科技（香港）实业有限公司 （非本站正式会员）

The SGM89000 is a 2Vrms pop/click-free stereo line driver designed to allow the removal of the output DC-blocking capacitors for reduced component count and cost. The device is ideal for single supply electronics where size and cost are critical design parameters.

The SGM89000 is capable of driving 2Vrms into a 2.5kΩload with 3.3V supply voltage. The device has differential inputs and uses external gain setting resistors that supports a gain range of ±1V/V to ±10V/V. The use of external gain resistors also allows the implementation of a 2nd-order low pass filter to ompliment DAC's and SOC converters. The SGM89000 has build-in shutdown control for pop/click-free on/off control.

Using the SGM89000 in audio products can reduce component count compared to traditional methods of

generating a 2Vrms output. The SGM89000 doesn't require a power supply greater than 3.3V to generate a

5.6VPP output, nor does the device require a split rail power supply. The SGM89000 integrates a charge pump to generate a negative supply rail that provides a clean,pop/click-free ground-biased 2Vrms output.

The SGM89000 is available in Green TSSOP-14 package. It operates over an ambient temperature range

of -40℃ to +85℃.